Katerina Matthaiou
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Katerina Matthaiou Email & Phone Number

Head of Product and Growth at Upstream
Location: Greece 9 work roles 2 schools
1 work email found @upstreamsystems.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

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Work email k****@upstreamsystems.com
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Current company
Role
Head of Product and Growth
Location
Greece
Company size

Who is Katerina Matthaiou? Overview

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Quick answer

Katerina Matthaiou is listed as Head of Product and Growth at Upstream, a with 402 employees, based in Greece. AeroLeads shows a work email signal at upstreamsystems.com and a matched LinkedIn profile for Katerina Matthaiou.

Katerina Matthaiou previously worked as Head of Product & Growth at Upstream and Product Innovation Director at Upstream. Katerina Matthaiou holds Mba International, Major: Marketing And Strategy from Athens University Of Economics And Business.

Company email context

Email format at Upstream

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{first}.{last}@upstreamsystems.com
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Profile bio

About Katerina Matthaiou

A seasoned professional with extensive experience across Software Product Management, Mobile Commerce, Business Strategy and Performance Marketing in an international context. Infused with a results-driven perspective and a growth-focused business approach, I leverage a diverse background across various industries to lead successful, cross-functional teams. My ability to respond creatively, swiftly, and adaptively to diverse challenges stems from a rich tapestry of experiences in different professional realms.

Listed skills include Social Media, Social Media Marketing, Marketing Strategy, International Trade, and 46 others.

Current workplace

Katerina Matthaiou's current company

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Upstream
Upstream
Head of Product and Growth
Greece
Employees
402
AeroLeads page
9 roles

Katerina Matthaiou work experience

A career timeline built from the work history available for this profile.

Head Of Product And Growth

Greece

Head Of Product & Growth

Current

While effectively managing the team and duties from my prior role as Product Innovation Director, I also assumed additional responsibilities and the leadership of the Presales team.These include guiding the new team in: identifying new opportunities in close collaboration with the commercial teams, defining the go-to-market strategy per account, creating compelling custom pitch material, localizing productized material for regional audiences, modeling financial business cases for sales opportunities and monitoring regional sales pipeline in conjunction with the sales targets.

Jul 2023 - Present

Product Innovation Director

Current

Athens, Greece

Reporting to the Chief Innovation Officer, I drive Upstream’s product roadmap for Martech, Communication Channels, & Advertising platforms. Notably, I’ve propelled Grow, our Customer Engagement Platform, to become the primary product driver within one year from MVP launch, leading the team in strategic product development, collaborating with cross-functional teams, and optimizing communication channels for optimal customer engagement.

Feb 2020 - Present

Product & Digital Account Director, New Products’ Division

Athens, Greece

I led the Commercial Product & Digital Account areas, as a member of an R&D team focused on new online products and services in the realms of marketing technology, consumer acquisition, UX optimization, and loyalty building. My contributions spanned the entire product lifecycle, encompassing design, testing, launch, and monetization of new initiatives. The achieved milestones include the successful launch of three new strategic products and the opening of a new market for the company, with a seamless handover to operational teams for sustained success.

Jun 2017 - Jan 2020

Senior Campaign Manager | Latam Region

Athens, Greece

I orchestrated and optimized a diverse range of mobile subscription products and multi-channel marketing campaigns, strategically enhancing content, UX, and billing strategies. Through these efforts, I achieved a remarkable 45% boost in gross revenues and an 89% increase in acquisitions within a year, showcasing my proficiency in driving successful campaigns that contributed to the overall growth of the organization.

Mar 2016 - Jun 2017

International Commercial Executive

Athens, Greece

Account Manager for 10+ key accounts in the APAC and EMEA Regions, overlooking all commercial, retail, marketing activities and partners’ performance. Also leading the new product development for all markets under my responsility, by creating customized products tailored to their unique needs and cultural characteristics.

Oct 2012 - Mar 2016

Digital Content & Social Media Manager

Athens, Greece

Led woman and fashion Glamour magazine’s website redesign, from concept to implementation, also designing and overviewing the social media strategy.

Jun 2009 - Oct 2012

Executive Assistant To The “Editor In Chief”

Athens, Greece

Provided support and administrative assistance regarding daily tasks, prepared articles for the Features and Beauty departments and organized in collaboration with the Marketing team various events and activities.

Jan 2007 - May 2009

Assistant Employment Representative

Pld Productions

Athens, Greece

Coordinated all personnel, payroll and billing activities, while liaising with external contacts and processing payments for contracts, bills, or other transactions.

Jan 2005 - Oct 2006
Team & coworkers

Colleagues at Upstream

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2 education records

Katerina Matthaiou education

Ba, Communication, Media And Culture / Major: Advertising And Communication Management

Panteion University Of Social And Political Sciences
FAQ

Frequently asked questions about Katerina Matthaiou

Quick answers generated from the profile data available on this page.

What company does Katerina Matthaiou work for?

Katerina Matthaiou works for Upstream.

What is Katerina Matthaiou's role at Upstream?

Katerina Matthaiou is listed as Head of Product and Growth at Upstream.

What is Katerina Matthaiou's email address?

AeroLeads has found 1 work email signal at @upstreamsystems.com for Katerina Matthaiou at Upstream.

Where is Katerina Matthaiou based?

Katerina Matthaiou is based in Greece while working with Upstream.

What companies has Katerina Matthaiou worked for?

Katerina Matthaiou has worked for Upstream, Fresh Line Cosmetics, Liberis Publications, Liberis Publications - Glamour & Lucky Magazines, and Pld Productions.

Who are Katerina Matthaiou's colleagues at Upstream?

Katerina Matthaiou's colleagues at Upstream include Kelly Thies, Stella Tsovou, Chris Cimpson, Charalampos Polychroniadis, and Gleice A..

How can I contact Katerina Matthaiou?

You can use AeroLeads to view verified contact signals for Katerina Matthaiou at Upstream, including work email, phone, and LinkedIn data when available.

What schools did Katerina Matthaiou attend?

Katerina Matthaiou holds Mba International, Major: Marketing And Strategy from Athens University Of Economics And Business.

What skills is Katerina Matthaiou known for?

Katerina Matthaiou is listed with skills including Social Media, Social Media Marketing, Marketing Strategy, International Trade, Magazines, Export Administration, Business Planning, and Retail.

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